8.3highHigh
CVE-2026-6266
A flaw was found in the AAP gateway. The user auto-link strategy, introduced in AAP 2.6, automatically links an external Identity Provider (IDP) identity to an existing AAP user account based on email matching without verifying email ownership. This allows a remote attacker to potentially hijack a victim's account or gain unauthorized access to other accounts, including administrative accounts, by manipulating the IDP-provided email.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an ordinary user account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 8.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L- Weakness
- CWE-305
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2026-05-04
- Last modified
- 2026-08-26
- Sources
- NVD
References
- https://access.redhat.com/errata/RHSA-2026:13508
- https://access.redhat.com/errata/RHSA-2026:13512
- https://access.redhat.com/errata/RHSA-2026:13545
- https://access.redhat.com/security/cve/CVE-2026-6266
- https://bugzilla.redhat.com/show_bug.cgi?id=2458142
- https://access.redhat.com/errata/RHSA-2026:13508
- https://access.redhat.com/errata/RHSA-2026:13512
- https://access.redhat.com/errata/RHSA-2026:13545
- https://access.redhat.com/security/cve/CVE-2026-6266
- https://bugzilla.redhat.com/show_bug.cgi?id=2458142
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6266.json